Mitama vs Summoners: who would win?

Mitama favored — Slight edge (~55%)

Mitama · Puella Magi Verse · Base

Tier

LOW 7-C

Attack Potency

Small Town Level

Speed

Massively Hypersonic

Durability

Small Town Level

Summoners · League of Legends · Base

Tier

LOW 7-C, up to 4-B

Attack Potency

Small Town Level, up to Solar System Level

Speed

Subsonic

Durability

Small Town Level, up to Solar System Level

A heuristic estimate from normalized VS Battles Wiki stats: tier, attack potency, speed and durability.